Characterisation and inhibition of PPO ACTIVITY IN THE APPLE”

1. Introduction 2. Polyphenol Oxidase in Apples 2.1 Definition and Function 2.2 Importance in Food Industry 2.3 Previous Research Studies 3. Biochemical Characterisation of PPO 3.1 Enzyme Activity Parameters 3.2 Substrate Specificity 3.3 Optimum Conditions for Activity 4. Methods of PPO Extraction 4.1 Sample Preparation Techniques 4.2 Extraction Protocols 4.3 Purification Techniques 5. Inhibition of PPO Activity 5.1 Chemical Inhibitors 5.2 Natural Inhibitors 5.3 Mechanisms of Inhibition 6. Effects of PPO on Apple Quality 6.1 Impact on Color and Flavor 6.2 Nutritional Consequences 6.3 Consumer Acceptance 7. Innovative PPO Inhibition Strategies 7.1 Genetic Engineering Approaches 7.2 Advances in Biotechnology 7.3 Packaging Solutions 8. Future Directions in PPO Research 8.1 Emerging Techniques and Technologies 8.2 Cross-Species Comparisons 8.3 Implications for Other Fruits 9. Conclusion